Enable the cogs menu, and I think you will find in section D, the 'control settings'. In these enable the SCP to 'ON' for the shooting modes you use.
Now when you press the OK button when you are out and about and want to make a change to your aspect ratio, up pops the super control panel, and you can scroll quickly about to change settings. Use a combination of the 4-way controller and the control dial.... it's dead quick this way.